Dual valve springs too!

[Joe Ricard]

I am guessing this ain't stock when I pulled out the valves yesterday I found dual valve springs. Starting to wonder what the two PO had in mind. Got some port work started also, man these were the worst I have ever seen. Large casting flash and the seam inside was more like the great smokey mountain range. the ridge where the seat meets the aluminum port was as big as a speed bump.
So now how do I identify the lifters? Not familiar with type 4 lifters. I am also finding conflicting opinions on valve adjustment. Hydraulic vs. solid.

[Will98D]

Oh Lord, don't get that started again. Check back a few weeks and you'll see a post about hyd vs. solid that had about 50 replies. In short, most people believe that the solid lifters (even with the effort of periodic adjustments) are far superior in this application.

[DSPTurtle]

Solid seems to be the way to go. When I was at Raby's shop he pulled out a Zip Loc bag with all these little parts in it.....it was an exploded Hydro Lifter. The solids seem to be the way of the T IV future. The valve adj stink but then again, sometimes it is just nice and peaceful staring up at the bottom end of your motor. That is if you can keep the oil from dripping on you.
JB

[Joe Ricard]

So what is the visual difference solid and hydraulic.

[Dave at Pelican Parts]

There is no visual difference that can be relied upon. Zero. Isn't that very "special"??

The hydro kits "usually" come with the solid spacers between the rocker arms, as were used in the hydro-lift Buses. Usually. Solid-lifter engines used springs between the rocker arms. But the spacers can be fitted to solid-lifter engines, and are sold as an upgrade for such.

The hydro kits "usually" come with thinner steel pushrods, while the solid-lifter cars used thicker aluminum pushrods. But the steel pushrods can be used in solid-lifter motors, and are sold as an upgrade for them.

The only real way to tell is to remove a pushrod tube so you can use a magnet to pull the lifter out. If it refuses to come out, there's a good chance it is a hydro lifter (that has some problems). There's a much smaller chance that it's a solid lifter with problems. If it comes out in many many pieces, it is a dead hydro lifter. If it comes out in one piece, it is probably a solid lifter. (Get the impression I don't like the hydros much??) The solid lifter is one piece, wile the hydro is much more complicated. You can tell the difference when they're sitting next to each other, but I don't think I can describe it in writing righht now...



These are solid lifters:


They have a "cup" in the one end where the end of the pushrod goes. You can't really see it from this photo. The hydros are different.

--DD

[Joe Ricard]

Well looks like I got solid lifters from all the specifics explained. Aluminum push rods, lifters come right out. Guess it would make sense with the dual valve springs, BIG Web cam. swivel feet adjusters. Thanks guess we can put this one to bed>>>>>